The aim of the course Fisica Sperimentale (Ottica Onde) is to illustrate the main phenomena of wave propagation, both in the mechanical and electromagnetic domains. In the latter domain a detailed attention is devoted to the propagation of visible light. Geometrical optics with applications to mirrors, lenses and compound optical instruments is developed first. Then the different phenomena connected to the wave nature of light, interference, diffraction, polarization, are illustrated emphasizing technological applications. The theoretical treatment is enriched by experimentations of phenomena and physical laws performed in the classroom.